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[SITUATION] · [QUIET] · [TECHNOLOGY]
7 clusters · 19 sources · 73 days · First seen · Last updated
Solana completes SIMD-0525 speed upgrades
Overview
Solana has completed its multi-stage rollout to reduce target block production time to 200 milliseconds, the final phase of the SIMD-0525 improvement proposal. This reduces the original 400ms slot target by half, enabling five block-production opportunities per second. Confirmed by Agave validator client developer Anza, the upgrade also shortens the network epoch duration from approximately 48 hours to 24 hours. To maintain stable processing capacity, the computing budget per block was reduced from 37.5 million to 30 million compute units.
On October 9, 2026, at the start of Epoch 1053, the network activated the 200ms target. Initial data from Solana Compass indicated an average slot time of 218.3 milliseconds during the first 26.2 hours of implementation.
Following these speed improvements, the Solana Foundation has identified the Alpenglow upgrade as the next major milestone. This upcoming transition aims to replace the TowerBFT voting layer with Votor, which is intended to reduce block finality from approximately 12.8 seconds to roughly 150 milliseconds. In preparation, Jito has outlined validator maintenance requirements, noting that during the Alpenglow transition, Block Assembly Marketplace (BAM) nodes will enter maintenance mode. While bundled transactions are expected to remain operational, Multi-Packet Processing and Dynamic Block Incentives will be temporarily unavailable, and the BAM auction cadence will be adjusted to 20 milliseconds to align with the new slot times.
Entities
Anza · Solana · Solana Foundation · Jito Labs · Lucas Bruder
Timeline
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[TECHNOLOGY] 2 sourcesSolana implements faster slot times and prepares for Alpenglow upgrade
Solana has activated a 200ms slot time target via SIMD-0525, while Jito prepares validator requirements for the upcoming Alpenglow upgrade to reduce block finality to 150ms.
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[TECHNOLOGY] 3 sourcesSolana reduces block production time to 200ms
Solana has reduced its target block production time to 200 milliseconds, doubling its block frequency and shortening epoch durations to approximately 24 hours.
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[TECHNOLOGY] 7 sourcesSolana reduces target block time to 250 milliseconds
Solana has reduced its target slot time from 300ms to 250ms via proposal SIMD-0525, increasing block production frequency to four slots per second while adjusting computation limits per slot.
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[TECHNOLOGY] 2 sourcesSolana reaches 300ms slot target, impacting arbitrage and liquidity
Solana's achievement of a 300ms slot target may reduce arbitrage extraction from automated market makers, potentially allowing liquidity providers to retain more value.
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[TECHNOLOGY] 5 sourcesSolana reduces network slot time to 350ms in first speed upgrade
Solana has reduced its network slot time from 400ms to 350ms, marking the first step in a four-stage plan to reach 200ms and decrease transaction confirmation latency.
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[TECHNOLOGY] 7 sourcesSolana to reduce mainnet slot time to 350ms
Solana is upgrading its mainnet to reduce target slot times from 400ms to 350ms starting in Epoch 1020, while adjusting per-block compute limits to maintain network stability.
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[TECHNOLOGY] 3 sourcesSolana Boosts Mainnet Block Capacity to 100 Million Compute Units
Solana raised its mainnet block limit from 60 M to 100 M compute units—a 66% increase—activated on July 29, boosting capacity for payments and trading while keeping block times unchanged.
Sources
bitcoinethereumnews.com · blockchainreporter.net · blocktempo.com · coincu.com · coinpedia.org · cointribune.com · criptotendencias.com · crypto-insiders.nl · crypto-times.jp · crypto.news · cryptobriefing.com · cryptonomist.ch · cryptoslate.com · detlionblood32.wordpress.com · it-boltwise.de · journalducoin.com · merca2.es · thecryptocurrencypost.net · tokenpost.com
This summary has been updated 4 times: see revision history